Does not contain sugar nor citric acid or any other substances likely to cause irritation. Neutral pH. Less than 0.5 calories per pastille. XEROSTOM products have been formulated to avoid irritation. It is formulated at a neutral pH to care about enamel integrity. Its mild lemon aroma gives a nice flavor and stimulates the glands. It includes olive oil to protect against gram negative bacteria, so that you feel a cleaner sensation in your mouth and a long lasting fresh breath. It includes Xylitol and fluoride to protect efficiently against tooth decay. It includes betaine to improve water adhesion to the tissues. It includes also vitamin E and B5.